Blue Moon 5K. 10K. Half Marathon by Califlow Runs

Get ready to lace up your running shoes for an experience that only comes around "Once in a Blue Moon!" On Sunday, May 31, 2026, hit the Long Beach, CA coastline for a spectacular 5K, 10K, or Half Marathon under the rare glow of an actual Blue Moon. This isn't just a run; it's a celebration of timing, presence, and shared magic you won't want to miss.

Surround yourself with ocean views and feel the high vibes and CaliFlow energy as you make your way through a flat, fast beach course. Enjoy professional chip-timing, free race-day photos, finisher medals, and join an inclusive community where every pace is welcome. With rest stops, music, and snacks waiting for you at the finish line, this much-anticipated event is an invitation to create memories and be part of a run people talk about for years to come.